The House of Windsor, the royal house of the United Kingdom and 14 other Commonwealth realms, includes the male-line descendants of Queen Victoria who are subjects of the Crown (1917 Order-in-Council) and the male-line descendants of Queen Elizabeth II (1952 Order-in-Council). According to these two Orders-in-Council, male-line female descendants lose the name Windsor upon marriage.
The line of Prince Arthur, Duke of Connaught and Strathearn, the third son of Victoria, died out in 1974, with the death of Princess Patricia of Connaught, later Lady Patricia Ramsay.
The line of Prince Leopold, Duke of Albany, the youngest son of Victoria, were not considered members of the House of Windsor, as they had fought on the German side during World War I as Dukes of Saxe-Coburg and Gotha (except for the Duke's daughter, Princess Alice, Countess of Athlone, who was considered a member of the House of Windsor as she remained in the United Kingdom). However, Alice's brother, Charles Edward, Duke of Saxe-Coburg and Gotha and his children, remained British dynasts for life, keeping their birth rights to the throne. Until he was deprived of this in 1919, he was also a British prince as a male-line grandson of Queen Victoria.
At the time of the royal family name change in 1917, there were living members of an older branch of British royals from the House of Hanover, descended from Ernest Augustus, King of Hanover, King George III's son and Queen Victoria's paternal uncle. Holding the Dukedom of Cumberland and Teviotdale in the British peerage, as male-line descendants of a sovereign they were not only considered dynasts but also held formally recognised titles and dignities of British princes and princesses.
Three of the current members of the House of Windsor are Catholic (labelled "CA" in the table) and are thus excluded from the line of succession to the British throne. The remaining 49 are in the line of succession, though not consecutively. Two of those 49 were previously excluded from the line of succession due to having married Catholics, but they were restored in 2015 when the Succession to the Crown Act 2013 came into effect.
Members